Triumph 1500 vs Triumph Herald kit car: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph 1500
74%
MOT pass rate · 37,142 vehicles
Triumph Herald kit car
94%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph Herald kit car (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph Herald kit car |
|---|---|---|
| MOT pass rate | 74% | 94% ✓ |
| MOT failure rate | 26% | 6% ✓ |
| Faults & advisories per test | 2.3 | 1.1 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 12,706 mi |
| Sample size (vehicles) | 37,142 | 2 |
Most common faults
Triumph 1500
- Parking brake: efficiency below requirements (3.7.B.7)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Nearside Rear wheel bearing has slight play (2.6.2)
- Offside Rear wheel bearing has slight play (2.6.2)
- Brakes imbalanced across an axle (3.7.B.5b)
- Oil leak
Triumph Herald kit car
- Play in steering rack inner joint(s)
- Brake performance not tested (3.7.A.1)
- Braking system leaking (3.6.A.1)
- Nearside Front front brake binding (3.7.B.1)
- Offside Front front brake binding (3.7.B.1)
- Parking brake: efficiency below requirements (3.7.B.7)
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph Herald kit car (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph Herald kit car report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.